Shock-absorber.



A. s. JOHNSON.

v .SHOCK ABSORBER.

APPLlCATlON FILEDJULY 12.1916.

Patented Jan. 2, 1917.

' lkw/77W i wwf/w ALBERT S. JOHNSON, OE SAN DIEGQP, CALFORNEA.

SHGCK-ABSORBER.

speciacatimof-Letters raient. l

Paten ted dan.. 2i, Mil?.

'lnplic-aton filed July 12, 1916.' Serial .woo

To all uhom it may concern.

Be it known that l. ALBERT :5. JOHNSON,

a citizen of the United States, residing' at San Diego, in the county" of San Diego, State of California, have. invented new and useful Improvements in Shock-bsorhers, of which the following` is a specification.

rlhis invention relates to shock absorbers of that class which are ladapted to interpose between the springs and the running gear of a vehicle; and it is an object of this invention to provide an improved shock absorber of lthis class with means for absorbing the smaller vibrations before they are transmitted to the vehicle spring and thence transmitted to the vehicle body.

The general nature of my invention will be bestl understood from the followingdescription of a preferred specific form of device `embodying my invent-ion. l illustrate such a preferred and specific form of device in the accompanying drawings in which- Figure 1 is an elevation showing my improved shock absorber applied to a vehicle, Fig. 2 vis an enlarged section taken as indi- 'cated by line Q-Q on `Fig. 1, and lligz is a sect-ion taken as indicated by linel 3-3 on Fig. 2.

ln' the drawings the numeral' 10 designates the body of a vehicle and 11 the axle thereof, forming a part o' the' running. gear on and nature of.

ofthe vehicle. The posiv the attachment of myfdevice of the running gear and vehicle will, of course, depend the case, connects to a vertical rod 1'( which passes upwardly through the lever 16, having' a. long` sliding bearing in the lever and in a boss loa extending; upwardly therefrom. lThis l a disk 18 adjustable at its upper enti d a spring 19 is confined between dish and a seat 20 on the lever 16'. rllhe rod 17 preferably has a close sliding fit in its passage through the lever 16 and the trnnnion 15 may have a bearsl against the vertically extending lue "in the present case l havey lever, a vertical rod havi flat face 21 which 22, toprevent the trunnion from turning' or tw1st1ng out of position.

The outer end oit the lever 'lll is prvo'ted at to the running1 of the machine;

while a spi-inn- 243 connects at 2 to the inner end of the lever. the other end of the spring being` connected at 28 to the body ofthe ve- .19. When the wheel f3() tends to suddenlyr rise the end of lever '1G is moved upwardly; and that part of the lever and spring seat Q0 are moved unwardhf pressing the spring lll before the the ,spring 1:2' begins to move upwaL y, before-the spring' 25 begins to lengthe addition7 this springq 19 also per function in conjunction with the e when lai-gro vibrations are encountf the primary function of the springI to absorb or.' l vibrations are not su'tlici call the s, 2G into immediate ac zv i whit-hoe c ouentlv. would other be transmitted to thevehicle spring 1Q and thencegto'tle body of the veli,n Having described a prefer-ed form of my invention, l claim: I

1, ln combination with a vehicle runningc `rear and body and suspension' spring there-- fon a lever pivoted to the running; gear, a

resilient,connection between the lever and the body, and a re ilient connection between the suspension spring; and toe lever.

2. ln Combination with vehicle .running gear and body and suspension spring therefor, a lever pivoted at one end to the running gear, a resilient conneetifn between. the other end of the lever and the body, and a resilient connection .reen the suspension spring and the er interi; ends.

ln combination with `fear and body and suenen for, a lever pivoted at on. 1 ning `gear, a r Y it connJ tion 'betviveen the other end of the lever and .the body, and a connection. between the su sion spring and the lever intermediate s embodying a compression spring' c upon lthe bearing' in the lever and Y a member at its upper end bearing; down on the cornpression spring; and -si; link conneciien-,gbetweenthe leWerem'-ofthe vertil'rod and tween the lower-end 'of the v erticel 'bediend' vthe end of the Suspension springsid vei'l, 'theend4 of' thefsuspensionzspring. *l v 'f tical` rod: carrylnge crpss trrunnin f.'at, its*` v 4; In combination 'with-a :vehicle running lewer' end :te 'which' the are ,attached- -liv5; geaijfendfbody and suspensimi-Spl'iil'gth'ei'ezv:nuklmseicl 'cross t'unnelil-V adapted by, '2,0 fol-5 a, `lever"pivotexl 'et neei'id'totzhell'iln-A np, algeinst the" lower stle-of-the lever' lie .ning geen.. e resilient'` ce'nneetionA between 'limit vthe upward movement 'of the the l'Qtli'erfend of theleyer andthe bedy,and 'fn Witness. hat l- Iaim the :fregoing I a connee tion.between the Suspension jliave'hereunto subseribedmy neme this 29th 1.0.'. ing; the leve inteimediate .ite 'eilics llem-' day o-Junelli l' v o inge comifeslon sprmglsee upoiij` .Y l thelyleverge vec'al rod having. :Ju-Sliding l bearing infthe lever end ean'yinge member? l Witnesses:

'at ite upper' end bearingjclown on the een JAMES T. BARKELE'W, 15.pression spring,` and/2- eonneeton'. be- M. l?. ,BLAEVMIRE 

